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            时间格式转换方法
            
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            2019/10/23</span>
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        <p>将 毫秒级 转换为 年月份</p>
<h2 id="1-函数转换"><a href="#1-函数转换" class="headerlink" title="1.函数转换"></a>1.函数转换</h2><figure class="highlight js"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br></pre></td><td class="code"><pre><span class="line"><span class="function"><span class="keyword">function</span> <span class="title">dateFormat</span>(<span class="params">timestamp</span>) </span>&#123;</span><br><span class="line">    <span class="keyword">var</span> date = <span class="keyword">new</span> <span class="built_in">Date</span>(timestamp );	<span class="comment">//时间戳为10位需*1000，时间戳为13位的话不需乘1000</span></span><br><span class="line">    <span class="keyword">var</span> Y = date.getFullYear() + <span class="string">'-'</span>;</span><br><span class="line">    <span class="keyword">var</span> M = (date.getMonth()+<span class="number">1</span> &lt; <span class="number">10</span> ? <span class="string">'0'</span>+(date.getMonth()+<span class="number">1</span>) : date.getMonth()+<span class="number">1</span>) + <span class="string">'-'</span>;</span><br><span class="line">    <span class="keyword">var</span> D = date.getDate() + <span class="string">' '</span>;</span><br><span class="line">    <span class="keyword">var</span> h = date.getHours() + <span class="string">':'</span>;</span><br><span class="line">    <span class="keyword">var</span> m = date.getMinutes() + <span class="string">':'</span>;</span><br><span class="line">    <span class="keyword">var</span> s = date.getSeconds() + <span class="string">':'</span>;</span><br><span class="line">    <span class="keyword">var</span> ms= date.getMilliseconds()</span><br><span class="line">    <span class="keyword">return</span> Y+M+D+h+m+s+ms;</span><br><span class="line">&#125;</span><br><span class="line"><span class="built_in">console</span>.log(dateFormat(<span class="keyword">new</span> <span class="built_in">Date</span>()))  </span><br><span class="line"><span class="comment">// 输出：2019-01-14 11:05:30:555</span></span><br></pre></td></tr></table></figure>

<h2 id="2-vue过滤器"><a href="#2-vue过滤器" class="headerlink" title="2.vue过滤器"></a>2.vue过滤器</h2><figure class="highlight js"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br></pre></td><td class="code"><pre><span class="line">Vue.filter(<span class="string">'dateFormat'</span>, <span class="function"><span class="keyword">function</span> (<span class="params">timestamp</span>) </span>&#123;</span><br><span class="line">  <span class="keyword">var</span> date = <span class="keyword">new</span> <span class="built_in">Date</span>(timestamp);<span class="comment">//时间戳为10位需*1000，时间戳为13位的话不需乘1000</span></span><br><span class="line">  <span class="keyword">var</span> Y = date.getFullYear() + <span class="string">'-'</span>;</span><br><span class="line">  <span class="keyword">var</span> M = (date.getMonth() + <span class="number">1</span> &lt; <span class="number">10</span> ? <span class="string">'0'</span> + (date.getMonth() + <span class="number">1</span>) : date.getMonth() + <span class="number">1</span>) + <span class="string">'-'</span>;</span><br><span class="line">  <span class="keyword">var</span> D = date.getDate() + <span class="string">' '</span>;</span><br><span class="line">  <span class="keyword">return</span> Y + M + D;</span><br><span class="line">&#125;)</span><br><span class="line"><span class="comment">//使用：&#123;&#123; time | dateFormat &#125;&#125;</span></span><br></pre></td></tr></table></figure>

<h2 id="3-moment日期插件"><a href="#3-moment日期插件" class="headerlink" title="3.moment日期插件"></a>3.moment日期插件</h2><pre><code>$ npm install moment --save</code></pre><figure class="highlight js"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">import</span> moment <span class="keyword">from</span> <span class="string">'moment'</span></span><br><span class="line">Vue.filter(<span class="string">'dateFormat'</span>, <span class="function"><span class="keyword">function</span>(<span class="params">dataStr,pattern=<span class="string">"YYYY-MM-DD hh:mm:ss"</span></span>)</span>&#123;</span><br><span class="line">	<span class="keyword">return</span> moment(dataStr).format(pattern);</span><br><span class="line">&#125;)</span><br><span class="line"><span class="comment">//使用：&#123;&#123; time | dateFormat &#125;&#125;</span></span><br></pre></td></tr></table></figure>

<h2 id="4-elementui表格列表中使用"><a href="#4-elementui表格列表中使用" class="headerlink" title="4.elementui表格列表中使用"></a>4.elementui表格列表中使用</h2><p>添加绑定 formatter 数据格式化事件</p>
<figure class="highlight html"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br></pre></td><td class="code"><pre><span class="line"><span class="tag">&lt;<span class="name">el-table</span> <span class="attr">:data</span>=<span class="string">"tableData"</span> &gt;</span></span><br><span class="line">            <span class="tag">&lt;<span class="name">el-table-column</span> <span class="attr">prop</span>=<span class="string">"stuId"</span> <span class="attr">label</span>=<span class="string">"学号"</span>&gt;</span><span class="tag">&lt;/<span class="name">el-table-column</span>&gt;</span></span><br><span class="line">            <span class="tag">&lt;<span class="name">el-table-column</span> <span class="attr">prop</span>=<span class="string">"name"</span> <span class="attr">label</span>=<span class="string">"姓名"</span>&gt;</span><span class="tag">&lt;/<span class="name">el-table-column</span>&gt;</span></span><br><span class="line">            <span class="tag">&lt;<span class="name">el-table-column</span> <span class="attr">prop</span>=<span class="string">"time"</span> <span class="attr">label</span>=<span class="string">"时间"</span> <span class="attr">:formatter</span>=<span class="string">"dateFormat"</span>&gt;</span><span class="tag">&lt;/<span class="name">el-table-column</span>&gt;</span></span><br><span class="line"><span class="tag">&lt;/<span class="name">el-table</span>&gt;</span></span><br><span class="line">methods: &#123;</span><br><span class="line">    //列表日期格式</span><br><span class="line">    dateFormat(row, column, cellValue)&#123;</span><br><span class="line">      var date = new Date(cellValue);//时间戳为10位需*1000，时间戳为13位的话不需乘1000</span><br><span class="line">      var Y = date.getFullYear() + '-';</span><br><span class="line">      var M = (date.getMonth() + 1 <span class="tag">&lt; <span class="attr">10</span> ? '<span class="attr">0</span>' + (<span class="attr">date.getMonth</span>() + <span class="attr">1</span>) <span class="attr">:</span> <span class="attr">date.getMonth</span>() + <span class="attr">1</span>) + '<span class="attr">-</span>';</span></span><br><span class="line"><span class="tag">      <span class="attr">var</span> <span class="attr">D</span> = <span class="string">date.getDate()</span> + ' ';</span></span><br><span class="line"><span class="tag">      <span class="attr">return</span> <span class="attr">Y</span> + <span class="attr">M</span> + <span class="attr">D</span>;</span></span><br><span class="line"><span class="tag">    &#125;</span></span><br><span class="line"><span class="tag">&#125;</span></span><br></pre></td></tr></table></figure>
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        <ol class="toc"><li class="toc-item toc-level-2"><a class="toc-link" href="#1-函数转换"><span class="toc-text">1.函数转换</span></a></li><li class="toc-item toc-level-2"><a class="toc-link" href="#2-vue过滤器"><span class="toc-text">2.vue过滤器</span></a></li><li class="toc-item toc-level-2"><a class="toc-link" href="#3-moment日期插件"><span class="toc-text">3.moment日期插件</span></a></li><li class="toc-item toc-level-2"><a class="toc-link" href="#4-elementui表格列表中使用"><span class="toc-text">4.elementui表格列表中使用</span></a></li></ol>
        
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